Boyd, J. (1976). Tools for agriculture: A buyer's guide to low cost agricultural implements. Intermediate technology publications ltd.
Chicago Edition CitationBoyd, JOhn. Tools for Agriculture: A Buyer's Guide to Low Cost Agricultural Implements. London: Intermediate technology publications ltd, 1976.
Cita MLABoyd, JOhn. Tools for Agriculture: A Buyer's Guide to Low Cost Agricultural Implements. Intermediate technology publications ltd, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.